WO2025041273A1 - Matériau pour articles à fumer, article à fumer et système à fumer - Google Patents

Matériau pour articles à fumer, article à fumer et système à fumer Download PDF

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Publication number
WO2025041273A1
WO2025041273A1 PCT/JP2023/030183 JP2023030183W WO2025041273A1 WO 2025041273 A1 WO2025041273 A1 WO 2025041273A1 JP 2023030183 W JP2023030183 W JP 2023030183W WO 2025041273 A1 WO2025041273 A1 WO 2025041273A1
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Prior art keywords
fiber
smoking
tobacco
hydrophobic
pulp fibers
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English (en)
Japanese (ja)
Inventor
敦 永井
正浩 千田
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Japan Tobacco Inc
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Japan Tobacco Inc
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Priority to PCT/JP2023/030183 priority Critical patent/WO2025041273A1/fr
Publication of WO2025041273A1 publication Critical patent/WO2025041273A1/fr
Anticipated expiration legal-status Critical
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/20—Devices using solid inhalable precursors

Definitions

  • the present invention relates to materials for smoking articles, smoking articles, and smoking systems.
  • Materials for smoking articles include hydrophobic substances. It is not easy to simply mix and disperse hydrophobic substances with other components, so a method is known in which the hydrophobic substance is dissolved in a hydrophobic solvent and the solution is sprayed onto the other components. Solvents that can be safely used in this case include, for example, ethyl alcohol, benzyl alcohol, various fatty acids, triacetin, and medium-chain fatty acid esters. However, when ethanol is used as the solvent, the solubility of the hydrophobic substance may not be sufficient. When fatty acids or medium-chain fatty acid esters are used as the solvent, the solubility problem is resolved.
  • the solvent itself has low volatility, so the solvent remains, affecting the flavor when the flavor is inhaled. Furthermore, when a hydrophobic solvent is used, if the water content of the other components is high, a homogeneous mixture cannot be obtained.
  • Another method is to disperse a hydrophobic substance in water and spray it on other ingredients.
  • Methods for dispersing a hydrophobic substance in water include 1) mechanically forming an emulsion, 2) forming an emulsion using an emulsifier, and 3) using an inclusion compound such as cyclodextrin (Patent Document 1, Non-Patent Document 1).
  • Patent Document 1 the stability of the emulsion is limited, and as a result, problems such as non-uniformity of the molded body and clogging of the fluid nozzle when spraying the emulsion often occur.
  • method 2) the coexistence of an emulsifier affects the flavor.
  • the inclusion compound is often expensive, and the host molecule may have an undesirable effect on the flavor when smoking.
  • the hydrophobic substance when the hydrophobic substance is solid, the solid is mixed with other solid materials as it is.
  • the hydrophobic substance and the other solid materials it is desirable for both the hydrophobic substance and the other solid materials to be in powder form, a state generally called powder mixing, in order to obtain a uniform molded product.
  • powder mixing problems often occur in that the additive and the additive are not mixed uniformly due to the ratio of the amount of the additive and the additive, the particle size distribution of the two, and differences in specific gravity.
  • 5) when the hydrophobic substance is liquid the liquid is mixed with other components as it is. This method is expected to achieve a more uniform dispersion than mixing solids together, but there is a problem that some of the components may solidify.
  • a method of using an anti-caking agent in combination is also considered, but there are safety issues and the anti-caking agent itself may have an undesirable effect on the flavor.
  • 6) a method is used in which the hydrophobic substance is formulated into a powder formulation using an excipient, and the other solid materials are mixed in a state that makes it easy to mix with the powder, and then the molded product is obtained.
  • the hydrophobic component is heated above its melting point, melted, mixed with the excipient, and stirred. In this method, the dispersibility of the hydrophobic substance is highly dependent on its physical properties such as viscosity.
  • the objective of the present invention is to provide a material for smoking articles that has good dispersibility for hydrophobic substances.
  • Non-pulp fibers comprising: Aspect 2 2.
  • the material of claim 1, wherein the non-pulp fibers are of plant origin.
  • Aspect 3 3.
  • Aspect 4 Aspect 4.
  • the material of any of the preceding aspects, wherein the non-pulp fiber comprises dietary fiber.
  • Aspect 5 5.
  • Aspect 6 A material according to any one of claims 1 to 5, wherein the non-pulp fibers have an average fiber diameter of 25 ⁇ m or less.
  • Aspect 7 Aspect 7.
  • Aspect 8 The material of any of aspects 1 to 6, comprising 0.01 to 10 wt. % of said hydrophobic material.
  • Aspect 8 Aspect 8. The material of any one of aspects 1 to 7, wherein the hydrophobic material is supported on the non-pulp fibers.
  • Aspect 9 Aspect 9. The material of any of aspects 1 to 8, wherein the hydrophobic substance has a melting point of 100° C. or less.
  • Aspect 10 Aspect 10. The material of any of aspects 1-9, wherein the hydrophobic substance is selected from the group consisting of menthol, vanillin, ethyl vanillin, tobacco extract, and combinations thereof.
  • Aspect 11 Aspect 11. The material of any of aspects 1-10, in the form of a sheet, powder, or granules.
  • Aspect 12 a mixing step of mixing the non-pulp fibers and the hydrophobic material to obtain a mixture;
  • Aspect 13 A smoking article comprising the material of any one of aspects 1 to 12.
  • Aspect 14 A smoking article according to aspect 13, and a heating device for heating the smoking article;
  • a smoking system comprising:
  • the present invention provides a material for smoking articles that has good dispersibility for hydrophobic substances.
  • FIG. 1 shows an embodiment of a non-combustion heating type smoking article.
  • FIG. 1 shows an embodiment of a non-combustion heating type smoking system.
  • X to Y includes the end values X and Y. Furthermore, in this disclosure, weights are on an oven-dry basis (dry basis) unless otherwise specified.
  • Smoking article material The smoking article material is a material used for smoking articles.
  • the smoking article material according to the present embodiment includes a hydrophobic substance and a non-pulp fiber.
  • Non-pulp fiber (component A)
  • the non-pulp fiber has a function as an excipient.
  • the non-pulp fiber (hereinafter also referred to as component A) is a fiber other than the pulp fiber.
  • the pulp fiber is an aggregate of cellulose fibers extracted from plants such as wood, and is usually used as a raw material for paper. Examples of the pulp fiber include waste paper pulp, chemical pulp, and mechanical pulp.
  • the pulp fiber also includes normal cellulose fiber or crystalline cellulose fiber.
  • Non-pulp fibers disperse hydrophobic substances well in the material for smoking articles. The reason for this is not limited, but it is presumed that non-pulp fibers have a high affinity for hydrophobic substances and, in some cases, have the ability to support hydrophobic substances.
  • Non-pulp fibers are preferably derived from plants. Plant-derived fibers also have the advantage of being biodegradable and therefore have a small environmental impact.
  • wood pulp is composed of fiber bundles formed by multiple bundles of single fibers with a fiber diameter of 20 ⁇ m, and the fiber diameter of wood pulp is about 100 to 200 ⁇ m, and the fiber length is about 1000 to 2000 ⁇ m.
  • the sheet becomes thick at 100 to 300 ⁇ m, and the thermal conductivity decreases.
  • non-pulp fibers can form a thin sheet with excellent mechanical strength and can achieve excellent thermal conductivity.
  • the average fiber diameter of non-pulp fibers is preferably 25 ⁇ m or less, more preferably 20 ⁇ m or less, and even more preferably 15 ⁇ m or less. There is no lower limit to the average fiber diameter, but it is 2 nm or more, 10 nm or more, 100 nm or more, 1 ⁇ m or more, or 5 ⁇ m or more.
  • the average fiber diameter of non-pulp fibers can be determined by acquiring an image of the fiber, measuring the width (short axis) of multiple fibers, and averaging these values. If the fiber shape is columnar (rectangular in cross section), the width of the main surface (the longer one) is taken as the width of the fiber. The number of fibers measured is preferably 100 or more.
  • the non-pulp fibers are preferably monofilamented cellulose.
  • Monofilamented cellulose is a thin fiber obtained by subjecting pulp fibers to a process such as defibration.
  • Monofilamented cellulose may be chemically modified by oxidation or the like.
  • the average fiber diameter of monofilamented cellulose is as described above. There are no limitations on the average fiber length of monofilamented cellulose, but the upper limit is preferably 2000 ⁇ m or less, more preferably 1500 ⁇ m or less. The lower limit is preferably 100 ⁇ m or more, more preferably 500 ⁇ m or more.
  • the non-pulp fiber is preferably dietary fiber.
  • Dietary fiber is a food component that is not digested by human digestive enzymes. It is more preferable that the dietary fiber is insoluble dietary fiber that does not dissolve in water.
  • the dietary fiber may be porous, i.e., spongy. Porous fiber increases the surface area of the sheet for smoking articles and is easy to support hydrophobic substances. From this perspective, the fiber is preferably citrus fiber.
  • Citrus fiber is a fiber whose main raw material is the albedo of citrus fruits. The average fiber diameter of citrus fiber is as described above.
  • the dietary fiber may also be short fiber or columnar particles with a small aspect ratio.
  • monofilamented cellulose and dietary fiber are used in combination. By using both in combination, the strength of the material for smoking articles is improved.
  • the upper limit of the weight of monofilamented cellulose per 1 part by weight of dietary fiber is preferably 1.5 parts by weight or less, more preferably 1.2 parts by weight or less, and the lower limit is preferably 0.1 parts by weight or more, more preferably 0.3 parts by weight or more.
  • the amount of non-pulp fibers in the smoking article material is preferably 1 to 76% by weight, more preferably 5 to 30% by weight. Too much non-pulp fiber is not economical. Too little non-pulp fiber may not produce the desired effect.
  • hydrophobic substance in the material for smoking articles preferably functions as a flavor source. That is, the hydrophobic substance (hereinafter also referred to as component B) is a hydrophobic flavoring substance.
  • the amount of the hydrophobic substance is not limited as long as it is an amount that can express a desired flavor, but is preferably 0.01 to 16% by weight, more preferably 0.05 to 6% by weight in the material for smoking articles.
  • the hydrophobic substance is preferably supported on non-pulp fibers. This configuration improves the dispersion state of the hydrophobic substance in the smoking article material.
  • the blending ratio of the hydrophobic substance (component B) to the non-pulp fibers (component A) is preferably 0.1 to 80% by weight, more preferably 0.1 to 30% by weight, and even more preferably 1 to 25% by weight.
  • the melting point is preferably 100°C or lower.
  • the upper limit of the melting point is preferably 80°C or lower.
  • the lower limit of the melting point is preferably 35°C or higher, more preferably 40°C or higher.
  • the melting point is determined by known calorimetric analysis such as DSC.
  • the hydrophobic substance is preferably a cyclic monoterpene that serves as a flavor source, or a tobacco extract. These may be used in combination.
  • the cyclic monoterpene that serves as a flavor source is preferably menthol, vanillin, or ethyl vanillin.
  • Tobacco extracts are active ingredients (components other than the medium used in extraction) contained in the extract obtained by subjecting tobacco raw materials derived from tobacco plants to extraction. Extraction can be carried out as known in the art, and examples include the following methods: 1) A method in which tobacco raw materials are subjected to extraction using a medium to obtain a tobacco extract, 2) A method in which a medium is added to the tobacco raw materials and heated, the generated steam is collected, and a tobacco extract is obtained, and 3) A method in which a medium that has been vaporized by heating is passed through the tobacco raw materials and the vapor after passing is collected to obtain a tobacco extract.
  • media include water, hydrophilic organic solvents such as alcohol, aprotic solvents, hydrophobic organic solvents such as hexane or petroleum, or combinations of these.
  • method 1) it is desirable to use a hydrophobic organic solvent to extract hydrophobic substances, and from the viewpoint of workability, it is preferable to use a hydrophobic aprotic solvent.
  • a hydrophobic organic solvent such as glycerin, propylene glycol, triacetin, 1,3-butanediol, or ethanol
  • an acid or alkali can also be used for extraction as necessary.
  • the liquid obtained by extraction, which contains the tobacco extract and the medium, is called the tobacco extract.
  • Tobacco raw materials can be, for example, Nicotiana tabacum or Nicotiana rustica.
  • Nicotiana tabacum can be, for example, Burley or flue-cured varieties.
  • Orient or native Burley varieties of the Nicotiana genus can also be used.
  • the tobacco raw material may be shredded or powdered tobacco raw material (hereinafter also referred to as "raw material pieces").
  • the particle size of the raw material pieces is preferably 0.5 to 1.18 mm.
  • Such raw material pieces are obtained, for example, by sieving in accordance with JIS Z 8815 using a stainless steel sieve conforming to JIS Z 8801. For example, 1) using a stainless steel sieve with 1.18 mm openings, the raw material pieces are sieved for 20 minutes by a dry mechanical shaking method to obtain raw material pieces that pass through the stainless steel sieve with 1.18 mm openings.
  • raw material pieces are sieved for 20 minutes by a dry mechanical shaking method to remove the raw material pieces that pass through the stainless steel sieve with 0.50 mm openings.
  • the moisture content in the tobacco raw material used for extraction is not limited, but from the viewpoint of efficiently extracting flavor components, it is preferable that the moisture content is approximately 5 to 30% by weight.
  • the moisture content in the tobacco raw material is measured by a known method, for example, a 1 g sample is taken, heated at 105°C, and the weight loss amount when heated until the weight change rate is 1 mg/min or less is taken as the moisture content.
  • a halogen heating moisture meter (Ohaus MB45, etc.) can be used for this measurement.
  • Binder C The binder (hereinafter also referred to as component C) imparts strength to the material for smoking articles.
  • binders are used, but it is preferable to select from the group consisting of cellulose derivatives, xanthan gum, guar gum, carrageenan, locust bean gum, alginic acid, sodium alginate, starch, water-soluble soybean polysaccharides, and combinations thereof.
  • the cellulose derivatives include alkyl cellulose, hydroxyalkyl cellulose, and carboxyalkyl cellulose.
  • examples of the cellulose derivatives include methyl cellulose, hydroxyethyl methyl cellulose (HEMC), hydroxypropyl methyl cellulose (HPMC), hydroxypropyl cellulose (HPC), carboxymethyl cellulose (CMC), and salts thereof.
  • HEMC hydroxyethyl methyl cellulose
  • HPMC hydroxypropyl methyl cellulose
  • HPMC hydroxypropyl methyl cellulose
  • CMC carboxymethyl cellulose
  • salts thereof it is preferable to use hydroxypropyl methyl cellulose (HPMC) and carboxymethyl cellulose (CMC) in combination.
  • the amount of component C in the smoking article material is preferably 1 to 50% by weight, more preferably 3 to 30% by weight. If the amount is below the lower limit, it is difficult to obtain sufficient strength.
  • the aerosol source (hereinafter also referred to as component D) is a substance that forms an aerosol when heated.
  • the aerosol source include polyhydric alcohols such as glycerin or polyethylene glycol.
  • the amount of component D in the smoking article material is preferably 8 to 50% by weight, more preferably 10 to 30% by weight. If the amount is less than the lower limit, the amount of smoke produced during smoking is insufficient. If the amount is more than the upper limit, the handling of the smoking article material is reduced.
  • the material for smoking articles preferably contains a fiber other than component A (hereinafter also referred to as component F).
  • the fiber include wood fiber, such as pulp, and cellulose fiber.
  • Component F serves to reinforce the material for smoking articles. From this viewpoint, in one embodiment, the content of component F in the material for smoking articles is 20 to 80% by weight.
  • the smoking article material has component B well dispersed therein and has excellent moldability. Therefore, the smoking article material is suitable as a filler for smoking articles.
  • the smoking article material may be in the form of shreds, sheets, strands, powder, or granules.
  • the material for smoking articles may be manufactured by any method, but is preferably manufactured by a method comprising the following steps.
  • the mixture is then crushed, granulated, or formed into sheets.
  • (1) Mixing Step By preferentially mixing component A and component B, even when other components are mixed, component B is not unevenly distributed and a good dispersion state can be obtained in the mixture.
  • the reason for this is not limited, but it is presumed that this is because component B is supported by component A.
  • Step of mixing other components If necessary, after the above mixing step, a step of mixing the mixture of components A and B with the above-mentioned other components (components C to F) may be provided.
  • the mixing ratio is appropriately adjusted depending on the final material for smoking articles.
  • Molding step In this step, the mixture obtained in the previous step is molded.
  • molding include pulverization, granulation, and sheeting.
  • the pulverization can be performed using a known pulverizer.
  • Granulation can be performed, for example, by adding water to the mixture and kneading it, granulating the resulting kneaded product (in a long columnar shape) using a wet extrusion granulator, and then regulating the granules into a short columnar or spherical shape.
  • the sheeting can be carried out by known methods such as rolling and casting. Details of the various sheets produced by these methods are disclosed in "Encyclopedia of Tobacco,” Tobacco Research Center, March 31, 2009.
  • An example of a method for producing a sheet by rolling includes the following steps. 1) A step of feeding the mixture containing water into a roller and rolling it. 2) A process of drying the rolled product in a dryer.
  • the surface of the rolling roller may be heated or cooled, the number of revolutions of the rolling roller may be adjusted, and the distance between the rolling rollers may be adjusted, depending on the purpose.
  • One or more rolling rollers may be used to obtain a sheet of the desired basis weight.
  • the method may include the following steps: 1) A step of thinly spreading (casting) the mixture (slurry) containing water; 2) drying the cast sheet.
  • a step of irradiating the slurry with ultraviolet light or X-rays to remove some of the components such as nitrosamines may be added.
  • the method may include the following steps: 1) spreading or extruding the mixture containing water through a die to prepare a wet sheet; 33) drying the wet sheet.
  • the material for smoking articles is suitable as a filler for smoking articles.
  • smoking articles include combustion smoking articles and non-combustion heating smoking articles.
  • a non-combustion heating smoking article will be described as an example.
  • FIG. 1 shows one embodiment of a non-combustion heating smoking article.
  • the non-combustion heating smoking article 20 includes a tobacco segment 20A, a cylindrical cooling section 20B having perforations on the circumference, and a filter section 20C.
  • the non-combustion heating smoking article 20 may have other members.
  • the axial length of the non-combustion heating smoking article 20 is not limited, but is preferably 40 to 90 mm, more preferably 50 to 75 mm, and even more preferably 50 to 60 mm or less.
  • the circumferential length of the non-combustion heating smoking article 20 is preferably 16 to 25 mm, more preferably 20 to 24 mm, and even more preferably 21 to 23 mm.
  • the length of the tobacco segment 20A may be 20 mm
  • the length of the cooling section 20B may be 20 mm
  • the length of the filter section 20C may be 7 mm.
  • the lengths of these individual components may be changed as appropriate depending on manufacturing suitability, required quality, etc.
  • Fig. 1 shows an embodiment in which the first segment 25 is disposed, but it is also possible to dispose the first segment 25 and to dispose only the second segment 26 downstream of the cooling section 20B.
  • the tobacco filler 21 in the tobacco segment 20A contains the material for smoking articles.
  • the method of filling the tobacco filler 21 into the wrapper 22 is not particularly limited, but for example, the tobacco filler 21 may be wrapped in the wrapper 22, or the tobacco filler 21 may be filled into a cylindrical wrapper 22.
  • the tobacco filler has a longitudinal direction such as a rectangular shape, it may be filled so that the longitudinal direction is in an unspecified direction within the wrapper 22, or may be filled so that it is aligned in the axial direction of the tobacco segment 20A or in a direction perpendicular thereto.
  • the tobacco segment 20A is heated, the tobacco components, aerosol source, and water contained in the tobacco filler 21 are vaporized and are available for inhalation.
  • Cooling section 20B The cooling section 20B is preferably constructed of a tubular member.
  • the tubular member may be, for example, a cardboard tube 23 formed by processing cardboard into a cylindrical shape.
  • the cooling section 20B may also be formed by a sheet of thin material that is wrinkled and then pleated, gathered, or folded to form a channel.
  • a sheet material selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polylactic acid, cellulose acetate, and aluminum foil may be used as such a material.
  • the total surface area of the cooling section 20B is appropriately adjusted in consideration of the cooling efficiency, and may be, for example, 300 to 1000 mm 2 /mm 2 .
  • the cooling section 20B is preferably provided with perforations 24.
  • the presence of the perforations 24 allows outside air to be introduced into the cooling section 20B during inhalation.
  • the aerosol vaporized components generated by heating the tobacco segment 20A come into contact with the outside air, and the temperature of the components is reduced, so that the components are liquefied, and an aerosol is formed.
  • the diameter (distance across) of the perforations 24 is not particularly limited, and may be, for example, 0.5 to 1.5 mm.
  • the number of perforations 24 is not particularly limited, and may be one or two or more. For example, a plurality of perforations 24 may be provided on the circumference of the cooling portion 20B.
  • the cooling section 20B may be rod-shaped with an axial length of, for example, 7 to 28 mm.
  • the axial length of the cooling section 20B may be 18 mm.
  • the cooling section 20B may have a substantially circular axial cross-sectional shape with a diameter of 5 to 10 mm.
  • the diameter of the cooling section may be approximately 7 mm.
  • Filter section 20C The configuration of the filter part 20C is not particularly limited, and may be composed of one or more filling layers. The outside of the filling layer may be wrapped with one or more wrapping papers.
  • the airflow resistance of the filter part 20C can be appropriately changed depending on the amount and material of the filter filling filled in the filter part 20C. For example, when the filter filling is cellulose acetate fiber, the airflow resistance can be increased by increasing the amount of cellulose acetate fiber filled in the filter part 20C. When the filter filling is cellulose acetate fiber, the packing density of the cellulose acetate fiber can be 0.13 to 0.18 g/cm 3.
  • the airflow resistance is a value measured by an airflow resistance measuring device (product name: SODIMAX, manufactured by SODIM).
  • the circumferential length of the filter portion 20C is not particularly limited, but is preferably 16 to 25 mm, more preferably 20 to 24 mm, and even more preferably 21 to 23 mm.
  • the axial length (horizontal direction in FIG. 1) of the filter portion 20C can be selected from 4 to 10 mm, and is selected so that the airflow resistance is 15 to 60 mmH 2 O/seg.
  • the axial length of the filter portion 20C is preferably 5 to 9 mm, and more preferably 6 to 8 mm.
  • the cross-sectional shape of the filter portion 20C is not particularly limited, but can be, for example, a circle, an ellipse, a polygon, or the like.
  • a destructible capsule containing a fragrance, fragrance beads, or a fragrance may be directly added to the filter portion 20C.
  • the filter section 20C may have a center hole section as the first segment 25.
  • the center hole section is composed of a first filling layer 25a having one or more hollow sections and an inner plug wrapper (inner wrapping paper) 25b that covers the filling layer.
  • the center hole section has the function of increasing the strength of the mouthpiece section.
  • the center hole section may not have an inner plug wrapper 25b and may maintain its shape by thermoforming.
  • the first filling layer 25a may be, for example, a rod with an inner diameter of ⁇ 5.0 to ⁇ 1.0 mm, in which cellulose acetate fibers are densely packed and a plasticizer containing triacetin is added at 6 to 20% by weight relative to the weight of the cellulose acetate and hardened.
  • the filter section 20C may include a second segment 26.
  • the second segment 26 is composed of a second packed layer 26a and an inner plug wrapper (inner wrapping paper) 26b that covers the packed layer.
  • the first filling layer 25a and the second filling layer 26a are connected by an outer plug wrapper (outer wrapping paper) 27.
  • the outer plug wrapper 27 can be, for example, a cylindrical piece of paper.
  • the tobacco segment 20A, the cooling section 20B, and the first filling layer 25a and the second filling layer 26a that have already been connected are connected by a mouthpiece lining paper 28. These connections can be made, for example, by applying a vinyl acetate glue or other adhesive to the inner surface of the mouthpiece lining paper 28 and wrapping the three components. These components may be connected in multiple layers using multiple lining papers.
  • non-combustion heated smoking system The combination of a non-combustion heated smoking article and a heating device for generating an aerosol is also referred to as a non-combustion heated smoking system.
  • a non-combustion heated smoking system comprises a non-combustion heated smoking article 20 and a heating device 10 that heats a tobacco segment 20A from the outside.
  • the heating device 10 comprises a body 11, a heater 12, a metal tube 13, a battery unit 14, and a control unit 15.
  • the body 11 has a cylindrical recess 16, and the heater 12 and the metal tube 13 are arranged at a position corresponding to the tobacco segment 20A to be inserted therein.
  • the heater 12 can be an electric resistance heater, and is heated by being supplied with power from the battery unit 14 in response to an instruction from the control unit 15 that controls the temperature.
  • the heat generated by the heater 12 is transferred to the tobacco segment 20A through the metal tube 13, which has high thermal conductivity.
  • the heating device 10 is shown as heating the tobacco segment 20A from the outside, but it may also be heating from the inside.
  • the heating temperature by the heating device 10 is not particularly limited, but is preferably 400°C or less, more preferably 150 to 400°C, and even more preferably 200 to 350°C.
  • the heating temperature refers to the temperature of the heater of the heating device 10. It is also possible to place a susceptor inside the tobacco segment 20A and heat the tobacco segment 20A using the induction method.
  • Aspect 1 Non-pulp fibers; A hydrophobic material; Smoking article material comprising: Aspect 2 2. The material of claim 1, wherein the non-pulp fibers are of plant origin. Aspect 3 3. The material of claim 1 or 2, wherein the non-pulp fibers comprise monofilamented cellulose. Aspect 4 Aspect 4. The material of any of the preceding aspects, wherein the non-pulp fiber comprises dietary fiber. Aspect 5 5. The material of claim 4, wherein the dietary fiber comprises citrus fiber. Aspect 6 A material according to any one of claims 1 to 5, wherein the non-pulp fibers have an average fiber diameter of 25 ⁇ m or less. Aspect 7 Aspect 7. The material of any of aspects 1 to 6, comprising 0.01 to 10 wt.
  • Aspect 8 Aspect 8. The material of any one of aspects 1 to 7, wherein the hydrophobic material is supported on the non-pulp fibers.
  • Aspect 9 Aspect 9. The material of any of aspects 1 to 8, wherein the hydrophobic substance has a melting point of 100° C. or less.
  • Aspect 10 Aspect 10. The material of any of aspects 1-9, wherein the hydrophobic substance is selected from the group consisting of menthol, vanillin, ethyl vanillin, tobacco extract, and combinations thereof.
  • Aspect 11 Aspect 11. The material of any of aspects 1-10, in the form of a sheet, powder, or granules.
  • Aspect 12 a mixing step of mixing the non-pulp fibers and the hydrophobic material to obtain a mixture;
  • Aspect 13 A smoking article comprising the material of any one of aspects 1 to 12.
  • Aspect 14 A smoking article according to aspect 13, and a heating device for heating the smoking article;
  • a smoking system comprising:
  • Example 1 The tobacco raw material was subjected to extraction using an organic solvent according to a standard method. Hexane, ethyl acetate, and acetone were used as the solvents. The obtained organic phases (solutions) were concentrated to dryness under reduced pressure to obtain semi-solid tobacco extracts. After being concentrated to dryness, these extracts did not re-dissolve in ethyl alcohol or water.
  • Non-pulp fiber component A: Citrus fiber Binder (component C): Carboxymethyl cellulose (CMC), hydroxypropyl cellulose (HPC) Fibers other than component A (component F): crystalline cellulose fiber, cellulose fiber
  • each excipient 10 g of the tobacco extract extracted with ethyl acetate was added as a hydrophobic substance.
  • the tobacco extract was pre-heated to ensure fluidity.
  • the heating temperature was 60°C or higher, and heating to 80°C provided more desirable fluidity.
  • the mixture of excipient and tobacco extract was stirred and mixed using a stirring blade until the color of the powder as a whole was uniform.
  • Citrus fiber was used as component A, and tobacco extract was prepared in the same manner as in Example 1 as the hydrophobic substance of component B.
  • tobacco extract was added to citrus fiber in an arbitrary range of 1 to 200% by weight, and mixed and stirred.
  • the tobacco extract was preheated at 80°C and added in small amounts. After mixing, the mixture was stirred and mixed using a stirring blade until the color of the entire powder was uniform.
  • the mixing ratio of tobacco extract to citrus fiber weight was up to 25% by weight, the generation of lumps in the mixed powder was small, and it was expected that the mixed powder would have operability suitable for the subsequent process.
  • the mixing ratio of tobacco extract to citrus fiber weight was between 25% by weight and 80% by weight, the generation of lumps was confirmed, although it was within the acceptable range.
  • the mixing ratio of tobacco extract to citrus fiber weight exceeded 80%, the generation of lumps became significant, and the suitability for the subsequent process was impaired. That is, it was confirmed that the content of tobacco extract is desirably 80% by weight or less, and more preferably 25% by weight or less, relative to component A (citrus fiber).
  • Example 3 The molded bodies were manufactured as follows: The tobacco extract used below was prepared in the same manner as in Example 1. 1) Molded body 1 The tobacco extract prepared as component B and citrus fiber as component A were prepared. 1% by weight of the tobacco extract was mixed with the citrus fiber to obtain a powder. 10 g of the powder, 30 g of pulp fiber, and 30 g of hydroxypropyl cellulose were mixed. This mixture was mixed in small portions with 700 mL of water to obtain a slurry. The slurry was spread into a thin layer and dried to obtain a uniform sheet-like molded product. This molded product substantially contained 0.14% by weight of the tobacco extract.
  • Molded body 2 The tobacco extract used in the molded body 1 was prepared as component B, and citrus fiber was prepared as component A. 20% by weight of the tobacco extract was mixed with the citrus fiber to obtain a powder. 20 g of the powder was mixed with 45 g of cellulose fiber and 1.5 g of carboxymethyl cellulose. 30 mL of water was further added to this mixture and mixed and stirred. The mixture was kneaded to prepare a block-shaped solid, which was then rolled into a sheet and dried to obtain a uniform sheet-shaped molded body. This molded body essentially contained 5.0% by weight of the tobacco extract.
  • Molded body 3 The tobacco extract used in the molded body 1 was prepared as component B, and citrus fiber was prepared as component A. 10% by weight of the tobacco extract was mixed with the citrus fiber to obtain a powder. 10 g of the powder was mixed with 30 g of pulp fiber and 30 g of hydroxypropyl cellulose. This mixture was mixed in small portions with 700 mL of an aqueous solution containing 30 g of glycerin to obtain a slurry. The slurry was spread into a thin layer and dried to obtain a uniform molded body. This molded body contained substantially 0.91% by weight of the tobacco extract.
  • Molded body 4 The tobacco extract used in the molded body 1 was prepared as component B, and citrus fiber and menthol were prepared as component A. 5% by weight of the tobacco extract and 4% by weight of menthol were mixed with the citrus fiber to obtain a powder. 20 g of the powder was mixed with 45 g of cellulose fiber and 1.5 g of carboxymethylcellulose, and 20 mL of water was added and mixed and stirred. The mixture was kneaded to prepare a block-shaped solid, which was then rolled into a sheet and dried to obtain a uniform sheet-shaped molded body. This molded body essentially contained 1.4% by weight of the tobacco extract and about 1% by weight of menthol.
  • Non-combustion heating smoking article 20A Tobacco segment 20B Cooling section 20C Filter section 21 tobacco filler 22 cigarette paper 23 paper tube 24 perforation 25 first segment 25a first filling layer 25b inner plug wrapper 26 second segment 26a second filling layer 26b inner plug wrapper 27 outer plug wrapper 28 lining paper

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  • Manufacture Of Tobacco Products (AREA)

Abstract

L'invention concerne un matériau pour articles à fumer, qui comprend des fibres autres que celles de la pâte à papier et une substance hydrophobe. Les fibres autres que celles de la pâte à papier sont de préférence dérivées d'une plante.
PCT/JP2023/030183 2023-08-22 2023-08-22 Matériau pour articles à fumer, article à fumer et système à fumer Pending WO2025041273A1 (fr)

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Applications Claiming Priority (1)

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PCT/JP2023/030183 WO2025041273A1 (fr) 2023-08-22 2023-08-22 Matériau pour articles à fumer, article à fumer et système à fumer

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WO2025041273A1 true WO2025041273A1 (fr) 2025-02-27

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0693996B2 (ja) 1984-12-03 1994-11-24 武田薬品工業株式会社 乳化組成物
JP6203702B2 (ja) 2014-11-18 2017-09-27 信越化学工業株式会社 ヒプロメロース酢酸エステルコハク酸エステルを用いたスプレードライ用溶液及び固体分散体の製造方法
WO2021221120A1 (fr) * 2020-04-30 2021-11-04 日本たばこ産業株式会社 Feuille pour article à fumer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0693996B2 (ja) 1984-12-03 1994-11-24 武田薬品工業株式会社 乳化組成物
JP6203702B2 (ja) 2014-11-18 2017-09-27 信越化学工業株式会社 ヒプロメロース酢酸エステルコハク酸エステルを用いたスプレードライ用溶液及び固体分散体の製造方法
WO2021221120A1 (fr) * 2020-04-30 2021-11-04 日本たばこ産業株式会社 Feuille pour article à fumer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TAKEMOTO, KIICHI ET AL., INCLUSION COMPOUNDS - FROM BASICS TO FUTURE TECHNOLOGY, 1989, pages 175 - 178

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